Engine Cooling & EnvironmentMOT/REFEM-E

Who should attend?

  • This course provides a deeper knowledge and competencies on engine thermal behavior and the vehicle energy management through “external” cooling systems.
Audience :
  • Engineers and technical staff from engine design and testing involved in thermal behavior and energy management, including cooling system designers.

Level : Advanced

Course Content

  • Engine cooling & external circuits

      • Engine cooling requirements, cooling systems types, convection air system, induced air system, liquid system.
      • Engine heat balance, thermal power to be evacuated.
      • Automotive liquid cooling circuit architectures, engine internal component (water pump, thermostat), external components (exchangers, fans, …), split-cooling, coolant, non-automotive applications.
  • Impact on vehicle - How do the internal components work?

      • Cooling air circuit: air inlet, electric fan.
      • Coolant circuit: main radiator, engine oil cooler, transmission oil cooler, EGR cooler, passenger compartment heater core, charge air cooler, expansion tank, degassing tank.
  • Control & driving - Approach to energy management

      • Control parameters: temperature, pressure, flow.
      • Control units, sensors: thermostat, thermal switch.
      • Control units, actuators: driven thermostat, motorized shutters, multi-ways valves.
  • Thermomanagement - Thermal & energy management

      • Objectives of thermal management.
      • Different ways for thermal management: electric water pump, split-cooling, multiways valves, multi temperature loops, multi-fluids loops.
      • Management of the passenger cab thermal comfort/fuel economy/emissions/reliability trade-off: emissions constraints, fuel economy constraints.
      • Strategies for thermal recovery: storage, exhaust calories recovery with a Rankine cycle, exhaust calories recovery with thermo-electricity.
  • Thermal & energy management of hybrid & electric vehicles

      • Objectives of the thermal management.
      • Passenger cab thermal management: use conditions, critical conditions, impact on fuel economy, solutions.
      • Thermal management of electric components: objectives, solutions for thermal/electric hybrids, solutions for full electric vehicles.
  • Under hood thermics

      • Identification of heat sources, impact of exhaust gas after-treatment systems.
      • Temperatures, hot air flow, components protection through thermal barrier, convective cooling or liquid cooling. Passenger cab thermal insulation.
  • Simulation exercises

      • Application of the above chapters.
      • Sizing of the main cooling system components.
      • Simulation of the most severe in-use situations (max speed, hill climbing with trailer, zero flow) with GT Power software.
      • Choice of thermal strategy and components selection.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • know the main associated stakes,
  • implement a new engine in a new vehicle,
  • quickly size the cooling system and suggest the required trade-offs.

Ways & Means

  • This training uses simple exercises of cooling system sizing, giving orders of magnitude.
  • Clear progression from simple cooling loop up to very complex thermal management of hybrid electric vehicles.
  • In parallel many components, new, used or faulty will be circulated.
  • The last 0.5-day is dedicated to simulation of various in-use situations.